According to Reuters, the students followed the lead of a thin friend with a large appetite when spending down time together. Researchers conclude that a skinny friend binging on food gave the participants permission to indulge themselves as well.
But, researchers also found that the study participants exercised more restraint when snacking with a heavier companion who overate.
The study says a part of our eating habits are determined by social pressure.
The findings are published in the Journal of Consumer Research.